TCR Vγ and Jγ utilization in BCP-ALL. * Several patients demonstrated minor fluorescent peaks that were not included. Only those patients in whom oligoclonality was evident by ethidium bromide analysis or in whom more than 2 equal intensity peaks were observed were classified as oligoclonal. The large number of peaks observed in the BCR-ABL case precluded their inclusion for relative Vγ and Jγ usage, but they were included in the total number of alleles. #One patient demonstrated VγfI-JγP1/2 and VγfI-JγP rearrangements. FT indicates fusion transcript.